Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849832 | Reproducing apparatus with erasing device and erasing function based on frequency multiplexed and/or DPSK coded signal | Shigeo Yamagata, Masahiro Takei, Yasutomo Suzuki | 1989-07-18 |
| 4821123 | Magnetic recording or reproduction apparatus with erasing capability | — | 1989-04-11 |
| 4807051 | Image pick-up apparatus with sound recording function | — | 1989-02-21 |